青少年网络同一性实验量表的编制与效度、信度初步分析

Development,validity and reliability of the Online Identity Experiment Scale for adolescents

目的：编制可以准确评估青少年网络同一性实验频率和特征的量表,并检验其效度、信度.方法：参考国外相关研究并结合半结构式访谈,形成15个条目的网络同一性实验量表（OIES）草本.以来自全国6个省份的2444名小学生、中学生和大学生为施测对象,采用t检验法、相关系数法及因子分析法进行条目筛选,并使用验证性因素分析及Cronbach α系数分析量表的结构效度和内部一致性信度.结果：通过3种方法的分析和筛选后,5个条目被删除,最终形成10个条目的问卷.对保留的10个条目进行探索性因子分析,结果显示,量表分为积极外在、消极内在和积极内在3个因子,累计方差贡献率为62.22％,因子载荷在0.59～0.86之间.将3因子模型进行验证性因素分析,结果显示模型与数据拟合程度较好（x2 =229.07,df=32,GFI=0.96,RMSEA=0.08）.量表及各因子的Cronbach α系数在0.68～0.80之间.结论：本研究编制的青少年网络同一性实验量表的结构效度和内部一致性信度良好,可以有效地测量青少年网络自我同一性实验频率和特征.

Objective： To develop the Online Identity Experiment Scale （OIES） for adolescents and test its validity and reliability. Methods： Referring to the relevant research of online identity experiment and the results of interviews with adolescents, a preliminary scale including 15 items was developed. Totally 2, 444 primary school students, middle school students and college students within 6 provinces in China were assessed with the preliminary scale. Three methods including t-test, correlation coefficient, and factor analysis were used to delete the inappropriate items, and then confirmed factor analysis and Cronbach a were used to test the construction validity and internal consistency reliability of the scale. Results： With 3 methods of items selection, 5 items were finally deleted, and loitems were remained. Exploratory factor analysis of the instrument with 10 items resulted in 3 factors, namely, posi- tive extrinsic character, negative intrinsic character, and positive intrinsic character. The three-factor solution accoun- ted for 62. 22% of the total variance, and the three factor loading ranged from 0. 59 to 0. 86. Confirmed factor anal- ysis was used to test the three factor model, result fit the model （X2 = 229.07, df = 32, GFI = 0. 96, RMSEA = 0.08）. The Cronbach a ranged from 0. 68 -0. 80 for the whole scale and the three factors of the scale. Conclusion： It suggests that the construction validity and internal consistency reliability of the Online Identity Experiment Scale meet the standard of the psychometrics, and it could be applied for assessment of the frequency and feature of adolescents online identity experiment.